Concepts of Genetics (12th Edition)
Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter 13, Problem 27ESP
Summary Introduction

To determine: The difficulty that a system would pose in which DNA serves directly as the template for polypeptides synthesis.

Introduction: The process that describes the relationship between the DNA, RNA, and proteins is known as the central dogma of modern genetics. It is the basis of genetics because this describes the process of protein synthesis.

Summary Introduction

To determine: The observations and theoretical considerations that argue against the proposal which consider the possibility that DNA directly serves the template strand for polypeptide synthesis.

Introduction: Proteins are the polypeptides that are made up of different types of amino acids. One amino acid is made up of three nucleotides that are known as a codon. Assembly of four nucleotides of the DNA gives twenty different combinations of the codon.

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The following DNA sequences found on the sense strand belong to the same eukaryotic gene: Sequence 1: 5'-GATTCAATAAAGCTCAGATCGCTCACGTCGCGACTC-3' Sequence 2: 5'-TCCGAGGTCACTAGATACTCGTCGATCGTATAAATG-3' a) Which sequence is likely to be found upstream from the coding sequence? Justify your answer. b) Which sequence is likely to be found downstream from the coding sequence? Justify your answer. c) Which sequence will not be transcribed into an mRNA transcript? Justify your answer.
As we focused on the genetic code and the transcription of genetic information stored in DNA into complementary RNA molecules. Along the way, we found many opportunities to consider the methods and reasoning by which much of this information was acquired. From the explanations given in the chapter, what answers would you propose to the following fundamental questions: Question: How were the experimentally derived triplet codon assignments verified in studies using bacteriophage MS2?
Lagging strand synthesis in prokaryotes leads to two main problems: 1. Presence of multiple RNA primers. 2. Missing phosphodiester bonds between Okazaki fragments. Describe the mechanism by which prokaryotes resolve these problems.

Chapter 13 Solutions

Concepts of Genetics (12th Edition)

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Mechanisms of Genetic Change or Evolution; Author: Scientist Cindy;https://www.youtube.com/watch?v=5FE8WvGzS4Q;License: Standard Youtube License